Operational Check Of Lcd (Function Code 12); Operational Check Of Lcd - Brother MFC4820C Service Manual

7.5.5 Operational Check of LCD (Function code 12)

Function
This function allows you to check whether the LCD on the control panel works normally.
Operating Procedure
(1) Press the 1 and 2 keys in this order
in the initial stage of the
maintenance mode.
The LCD shows the screen given at
right.
(2) Press the Fax Start key. Each time
you press the Fax Start key, the
LCD cycles through the displays
shown at right.
(3) Press the Stop/Exit key in any process of the above display cycle. The equipment beeps for
one second and returns to the initial stage of the maintenance mode.
7 -1 3
Fax Start key
Fax Start key
Fax Start key